My own worst enemy

“Prometheus” star Charlize Theron faces off against herself at the box office this weekend as the Academy Award-winning actress also plays the evil queen in last weekend’s No. 1 movie “Snow White and the Huntsman.” As you wait to find out which of Charlize’s films will be the declared the fairest of them all at the box office, see how other stars have fared when they’ve battled themselves in theaters.

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Model-turned-actress Brooklyn Decker was quite the over-achiever. She starred in two movies that hit theaters on the same day: “Battleship” and “What to Expect When You’re Expecting.” Although Universal’s expecting “Battleship” to sink its quarterly earnings, the movie’s made $292 million worldwide, far more than “What to Expect’s” $42.4 million global take.

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At the beginning of this year, Kate Beckinsale faced off against herself when the fourth “Underworld” movie was released just a week after she graced the big screen opposite Mark Wahlberg in “Contraband.” Although the $25 million “Contraband” likely turned a profit with its $92.5 million in worldwide ticket sales, “Underworld Awakening” emerged on top, earning $160 million at the box office. “Underworld” also took the top spot the first weekend both films were in theaters, earning $25.3 million to “Contraband’s” $12 million.

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Ryan Gosling faced off against himself in theaters when “The Ides of March” opened just a few weeks after “Drive.” It was a close race at the box office with “Drive” posting a narrow win, thanks to its $70 million worldwide gross. “The Ides of March” only made $64.6 million.

Last August, Universal’s “The Change-Up” pitted stars Jason Bateman, Ryan Reynolds and Olivia Wilde (pictured here at the film’s premiere) against themselves. All three were also starring in other major summer movies that were still in theaters. “The Change-Up’s” dismal box-office performance meant that each star’s past film did better.

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A long box-office run likely helped Ryan Reynolds’ $200 million, special effects-filled “Green Lantern” gross $219.9 million worldwide. The film also had a higher-grossing opening weekend than “The Change-Up,” pulling in $53.2 million compared to “The Change-Up’s” $13.5 million.

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Jason Bateman’s $35 million “Horrible Bosses” had a $28 million opening weekend on its way to grossing $209.6 million worldwide.

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But, Olivia Wilde’s “Cowboys & Aliens” successfully out-dueled “The Change-Up” in three ways. Last summer’s Western had a higher-grossing opening weekend ($36.4 million), a larger worldwide gross ($174.8 million) and it even beat “The Change-Up” the weekend the latter film opened, pulling in $15.7 million during that frame.

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Last summer, Owen Wilson starred in two drastically different movies: Woody Allen’s hit “Midnight in Paris,” and Pixar’s blockbuster kids movie “Cars 2.” Not surprisingly, the $200-million “Cars 2″ outpaced “Midnight in Paris'” limited and wide opening weekend, with $66 million its opening weekend compared to “Midnight in Paris'” $3.6 million over the same frame. “Cars 2″ made more than $550 million worldwide. “Midnight in Paris” made $148.3 million.

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Natalie Portman also starred in a battle between a big-budget blockbuster and an indie darling last summer. But, “Thor,” which opened a week before “Hesher,” which she also produced, made $34.7 million against Hesher’s $126,046 opening in limited release. “Thor” ultimately made nearly $450 million worldwide compared to “Hesher’s” $382,946 in the US.

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Rose Byrne starred in “Bridesmaids” and “X-Men: First Class.” And even though “Bridesmaids” was a steady moneymaker, grossing more than $288.8 million worldwide, “X-Men: First Class” made $55 million its opening weekend to “Bridesmaids'” $12 million. “X-Men” also grossed $353.6 million total worldwide.

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Former boy-bander Justin Timberlake starred in both “Bad Teacher” and “Friends With Benefits” last summer. Even though “Friends With Benefits” made more money than “Bad Teacher” in its opening weekend, “Bad Teacher” had a bigger debut, grossing $31.6 million compared to “Friends With Benefits'” $18.6 million.

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Timberlake’s “Friends With Benefits” co-star Emma Stone had back-to-back hits last summer, also gracing the screen in “Crazy, Stupid, Love.” Steve Carell’s producing debut just edged out Sony’s “FWB” opening, earning $19.1 million to “FWB’s” $18.6 million. But, Stone’s second offering way outpaced “Friends With Benefits” when both films were in theaters.–By Hilary Lewis